Request-url-http-3a-2f-2f169.254.169.254-2flatest-2fmeta Data-2fiam-2fsecurity Credentials-2f -

To understand why this specific string triggers critical security alerts, we must break down its two components: the URL encoding and the target IP address. The URL Encoding Breakdown

Given the severity of the risks, a multi-layered defense strategy is essential to protect against IMDS-based attacks. The following are the most critical mitigations recommended by cloud security experts.

The domain or IP address in the URL is 169.254.169.254 . This IP address is special because it falls within a range reserved for link-local addresses in IPv4. Specifically, these addresses are used for communication between devices on the same link (i.e., the same subnet or local network) without the need for a router. To understand why this specific string triggers critical

When the application processes this request, the EC2 server queries its own internal metadata service, fetches the sensitive IAM credentials, and inadvertently returns them right to the attacker's browser window or log file. High-Profile Impact

If you're looking to , you can find best practices on the AWS IAM Security and EC2 Instance Metadata pages. Wiz x Cloud Security Championship: Perimeter Leak The domain or IP address in the URL is 169

Theft. Up to this point, you may be assuming that, to get access to IMDS, you need to have a shell session on the cloud-based syst... Yusuf TEZCAN AWS EC2 Credentials Theft via SSRF Abuse - Hacking Articles

When an AWS EC2 instance is assigned an IAM role, AWS automatically provisions temporary security credentials for that role. The application running on the instance retrieves these credentials by querying the following path: When the application processes this request, the EC2

Perhaps the most infamous example is the 2019 Capital One data breach, which exposed the personal information of over 100 million customers. An attacker exploited a misconfigured Web Application Firewall (WAF) that was vulnerable to SSRF. Through the SSRF, they queried the IMDS endpoint, retrieved the IAM credentials associated with the EC2 instance, and used them to exfiltrate massive amounts of data from an S3 bucket.

This specific attack vector was the methodology used in the 2019 Capital One data breach. An attacker used SSRF on a misconfigured web application firewall (WAF) to query the EC2 metadata service, steal credentials, and subsequently exfiltrate over 100 million credit card applications.